Finding the Fourth Proportional to 88,261.09, 132,388.56 and 28,288.69

Step by Step Solution

1. Step 1: Write the proportion equation
   88,261.09 : 132,388.56 = 28,288.69 : x
2. Step 2: Convert to fraction form
   88,261.09/132,388.56 = 28,288.69/x
3. Step 3: Cross multiply
   88,261.09x = 132,388.56 × 28,288.69
4. Step 4: Simplify right side
   88,261.09x = 3,745,098,602.42
5. Step 5: Solve for x
   x = 3,745,098,602.42/88,261.09
6. Step 6: Final answer
   x = 42,432.05